1. Contact the training institution directly to negotiate a refund. You can try to contact the training institution directly, explain the situation and negotiate a refund. If the training institution agrees, then the problem will be solved.

2. Refund through customer service of Tik Tok platform. If the course is purchased through official channels of Tik Tok, you can contact Tik Tok customer service to explain the situation. Customer service may intervene to help solve the refund problem.

3. Use Tik Tok 14 days unreasonable refund policy. If the course purchase time does not exceed 14 days, you can use Tik Tok 14 days unreasonable refund policy and refund through the platform customer service operation.

4, collect evidence, legal channels. If the problem cannot be solved through the above channels, evidence such as transfer records, contracts and communication records can be collected and solved through legal channels.

5. Complain to relevant departments. You can complain to 12345, industry and commerce 123 15, tax bureau and other relevant departments, and provide corresponding evidence and materials.